Finding the Fourth Proportional to 2,182.10, 3,011.24 and 1,187.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.10 : 3,011.24 = 1,187.38 : x
2. Step 2: Convert to fraction form
   2,182.10/3,011.24 = 1,187.38/x
3. Step 3: Cross multiply
   2,182.10x = 3,011.24 × 1,187.38
4. Step 4: Simplify right side
   2,182.10x = 3,575,468.13
5. Step 5: Solve for x
   x = 3,575,468.13/2,182.10
6. Step 6: Final answer
   x = 1,638.55